Price for 2 carat diamond. If this is confusing, or if you have any other questions, please call us, and we'll be glad to walk you through it - A pearl necklace measuring 24 inches long. Deals on diamonds do not exist. Ultimate Guide to 2-Carat Diamonds In this guide, we'll go over what to look for when purchasing a larger diamond. A ruby is denser, therefore smaller than a diamond of the same weight. Any such misrepresentation is illegal. Brilliant Cut. If you have a smaller budget, we have some tips at the end for making a diamond appear larger while staying within budget. Please note that this is a general guidelineevery jeweler sets their own prices and they do vary. Today, some of the myth quality survives through the association of specific colored stones with particular zodiac signs, months of birth, and anniversaries. Fair Cut.